package 预科0102Phone;
/*将通话套餐类和上网套餐类中相同的特征和行为提取出来组成抽象套餐类 */
public abstract class PhonePlan {
	protected float cost;
	public abstract void show();
	public float getCost() {
		return cost;
	}
	public void setCost(float cost) {
		this.cost = cost;
	}
	
	
	
}
